Heavy Duty Metal Construction. Black Powder Coated ΓÇô Durable, Scratch Resistant, UV Resistant. Extends bed length from 33 1/2″ to 60 1/2″ Capacity increase: 11.4 Cubic Ft. to 20.6 Cubic Ft. ΓÇô 44.6% Easy fold-out deployment extends bed length in seconds. Foldability allows the extender to lay flat on the tailgate. Folded flat height 2 1/4″. Extends tailgate 9ΓÇ¥. Easy install. Haul extra gear with plenty of room for 75qt. cooler! Hundreds of Molle panel holes for attaching cargo security straps